Vehicle emission testing: A step-by-step guide for Punjab's motorists
<p>With the end of the year, smog season is back in Punjab in full force. For the past week, the air quality in Lahore, the provincial capital, has consistently been <a href="https://www.dawn.com/news/2043255">ranked</a> the worst in the world. A recent report also stated that Lahore’s average PM2.5 concentration — the amount of fine particulate matter — was